#229 Command parameters prevent ica.exe start

I'm using italc 2.0 and trying to run in a remote desktop environment using nComputing X550 devices.
I've tried using the vbs and bat scripts to assign different ports to each session, however any command parameters when trying to call ica.exe (e.g. -ivsport or -isdport) prevent ica.exe from even starting. Running ica.exe alone works fine, but only uses the default ports / ports listed in registry.